Testing 244, 296, 358, 359 Error, greater with coated plates than Excess of redundant fluid in coated plates 560 and note 30 Experiment I. 218, 233, 291, 512, 562 II. 235, 292, 561 IV. 269, 293, 471, 480, 481 V. 273, 447, 448, 452, 454, VI. 279, 453, 476, 477, 683 VIII. 288, 542 and note 23 Fair straw 564 f. alk 627, 694 Flannel 514 Floor, effect of 335 Florence flask 521; battery 521 Fluid, electric 195, 216, note 1; real 91; Force near an electrified surface 154; Fore and back room 469 Franklin, Benjamin, F.R.S. (1706- Fringe of dirt on coated plates 308, 326, G. Garden, copper wire stretched round Gauge electrometer 224, 248 General conclusion 291 Glass, different electric qualities of 301, 322 Glass house 378 Glauber's salt 626, 694 Globe, charge of compared with that of Globe, electrified 20-27, 280; capacity Globe, meaning the world 214 Globe of electrical machine 248, 495, Globe within hemispheres 218, 512, 562, Globes, coated 523, 542, 559, 563 H. Hamilton, Dr, Prof. of Philosophy, Heat, effect on charge of glass, &c. 366, Henly (William, F.R.S., d. 1779); linen Hissing noise before spark 213 Hot glass a conductor 369, note 26; Hygrometer corks 459; Smeaton's 468; I. Immoveable fluid 12, 351 Inches of electricity 458, 648, 654 Increase of charge of globe due to in- duction 339, 652 and note 24 Induction 44-47, 175-194, 277, 287, Instantaneous spreading of electricity Iron, conductivity of 398, 576, 687, note J. Jar 223; capacity of jars 573, 581 K. Kinnersley (Ebenezer, Physician in Phil- Knob for discharging 511, 572 L. Lac 371, 374, 376, 518, 520 Lac solution 494 Measurements of apparatus 219, 255, 273, 275, 466, 472 Mechanism for Exp. I. 222 Metals, conducting power 397, 398 Michell (Rev. John, F.R.S., d. 1793) 354 Moist wood 392 Moment, statical 388 Moveable electricity in glass 350 N. Nairne, Edward, F.R.S., d. 1806; Mr N. Lane, Timothy, F. R.S. (b. 1734, d. 1804) Negative electrification 463 136, 213, 601 Lane's electrometer 263, 329, 540, 544, 559, 569, 570, 571, 580 Law of electric force from Exp. I. 291, note 19 Leakage, electric 260, 264, 393- Leyden vial 128, 206, 313, 363, 389 Light round the edge of coating 307, 326, 532; brightest at first charging, Limetree wood 588, 611 Linen thread 244 Lines of discharge of torpedo 400 Loops of chain 433, 605 M. Machine for trying coated plates 295, Machine, electric 242 Magazine of electricity 207, 521, 563 Matter 4 Maximum density of electric fluid 20 Newton 18, 19, 97 Newton's fits 354 N. O. P. Q. 459, 462, 592 Nuremberg glass 301, 376, 497 Oblong, charge of 284, 479; coatings Oil of vitriol 626, 694 P. pratio of charge spread uniformly on p ratio of circumference of circle to Penetration of electric fluid into glass Plate air 134, 340; concave 155; circu- Plates, coated, lists of 315, 324, 325, Repulsion 106; of balls as square of redundant fluid 386, 525, 563 Richard 511, 565 Rosin 336, 371, 461, 464, 488 Rosin varnish 497; experimental 514, 520, 548; plates 518, 555, 560, 594 Rules for trial plates 592; for strength Spark, electric 135-139, 212; none from torpedo 401; length does not depend Spherical shell 18, 19 Spreading of electricity 299-367, 484, Square, charge of 282, 283, 479 and note 22; plates of various substances 269 Stool, electric 420, 612 Strata, conducting, in glass 351, 354 capacity 356, 451, 463, 539 System of coated plates 316 Specific gravity 595 Solutions of salt, &c. 689, 694, 695, Trial plates 465 Tubes 575, 632, 633, 636 Three parallel plates 288 Torpedo, 1st wooden 409, 415, 596; 2nd Touching, to compare charges 413, 441, Trial plate, theory of 153 and note 17; Trough, torpedo 410, 587 Tubes, measures of 632-635 Undercharge 6 U. W. Wainscot 561, 590, 609 Walsh (John, F.R. S., M. P., d. 1795) 395, 396, 401, 415, 421, 424, 430 621, 688; rain 617; purged of air Waxed glass 255, 271, 295, 447, 450, 476, Weather, effect of on coated plates 304 Wilcke (Johann Karl, b. 1732, d. 1796) 134 Williamson, Hugh, M.D. 437 Wilson (Benjamin, F.R.S., b. 1721, d. Wind, electric 125 Wire 219, 240; charge of 279, 479, 683; Wires compared with canals of incom- CAMBRIDGE: PRINTED BY C. J. CLAY, M.A., AT THE UNIVERSITY PRESS. CAMBRIDGE UNIVERSITY PRESS PUBLICATIONS. HYDRODYNAMICS, a Treatise on the Mathematical Theory of Fluid Motion, by HORACE LAMB, M.A., formerly Fellow of Trinity College, Cambridge; Professor of Mathematics in the University of Adelaide. [Nearly ready. MATHEMATICAL AND PHYSICAL PAPERS. By GEORGE GABRIEL STOKES, M.A., D.C.L., LL.D., F.R.S., Fellow of Pembroke College and Lucasian Professor of Mathematics in the University of Cambridge. Reprinted from the Original Journals and Transactions, with Additional Notes by the Author. [In the Press. A TREATISE ON NATURAL PHILOSOPHY. Vol. I., Part I. By Sir W. THOMSON, LL.D., D.C.L., F.R.S., Professor of Natural Philosophy in the University of Glasgow, and P. G. TAIT, M.A., Professor of Natural Philosophy in the University of Edinburgh. Second Edition. 8vo. 16s. ELEMENTS OF NATURAL By PHILOSOPHY. Second Professors Sir W. THOMSON and P. G. TAIT. Part I. THE ANALYTICAL THEORY OF HEAT. By JOSEPII FOURIER. Translated, with Notes, by A. FREEMAN, M.A., Fellow of St John's College, Cambridge. Demy 8vo. 165. Cambridge: AT THE UNIVERSITY PRESS. London: CAMBRIDGE WAREHOUSE, 17, PATERNOSTER Row. |